532  Leg-Stamp
닭다리 개다리 1

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There are 170 heads of Chickens and Dogs together. Altogether there are 520 legs. How many chickens are there?



There are 200 heads of Chickens and Dogs together. Altogether there are 620 legs. How many chickens are there?



There are 90 heads of Chickens and Dogs together. Altogether there are 260 legs. How many chickens are there?



There are 170 heads of Chickens and Dogs together. Altogether there are 460 legs. How many chickens are there?



There are 160 heads of Chickens and Dogs together. Altogether there are 500 legs. How many chickens are there?

There are 250 stamps which are 4-cent stamps and 3-cent stamps. Altogether they cost 890 cents. How many 4-cent stamps are there?



There are 230 stamps which are 4-cent stamps and 9-cent stamps. Altogether they cost 1470 cents. How many 4-cent stamps are there?



There are 160 stamps which are 8-cent stamps and 6-cent stamps. Altogether they cost 1120 cents. How many 8-cent stamps are there?



There are 200 stamps which are 3-cent stamps and 7-cent stamps. Altogether they cost 1040 cents. How many 3-cent stamps are there?



There are 160 stamps which are 6-cent stamps and 3-cent stamps. Altogether they cost 690 cents. How many 6-cent stamps are there?

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